NJU3711M-TE1 Nisshinbo

NJU3711A 8-BIT SERIAL TO PARALLEL CONVERTER GENERAL DESCRIPTION PACKAGE OUTLINE The NJU3711A is an 8-bit serial to parallel converter especially applying to MPU outport expander. It can operate from 2.4V to 5.5V. The effective outport assignment of MPU is available as the connection between NJU3711A and MPU using only 4 lines. The serial data synchronizing with 5MHz or more NJU3711AV clock can be input to the serial data input terminal and the data are output from parallel output buffer through serial in parallel out shift register and parallel data latches. The hysteresis input circuit realizes wide noise margin and the high drive-ability output buffer (25mA) can drive LED directly. PIN CONFIGURATION FEATURES 8-Bit Serial In Parallel Out V DD Hysteresis Input 0.5V typ at 5V 1 14 P3 P4 2 13 P2 Operating Voltage 2.4 to 5.5V P5 3 12 P1 Maximum Operating Frequency 5MHz V 4 11 CLR SS Output Current 25mA at 5V, 5mA at 3V STB P6 5 10 C-MOS Technology 6 9 CLK P7 Package Outline SSOP14 P8 8 DATA 7 NJU3711AV BLOCK DIAGRAM P1 DATA P2 CLK P3 P7 P8 STB Controller Circuit CLR Ver.2008-02-22 -1- Shift Register Latch Circuit NJU3711A TERMINAL DESCRIPTION No. SYMBOL I/O FUNCTION 1 P3 O Parallel Conversion Data Output Terminals 2 P4 O 3 P5 O 4 V - GND SS 5 P6 O 6 P7 O Parallel Conversion Data Output Terminals 7 P8 O 8 DATA I Serial Data Input Terminal 9 CLK I Clock Signal Input Terminal STB 10 I Strobe Signal Input Terminal 11 CLR I Clear Signal Input Terminal 12 P1 O Parallel Conversion Data Output Terminals 13 P2 O 14 V - Power Supply Terminal (2.4 to 5.5V) DD Ver.2008-02-22 - 2 -